Add a setting 'input_format_enum_as_number' comp-formats easy task feature

#10682 opened May 5, 2020 by alexey-milovidov

1

PrettyCompactASCII format (set the grid line to simple "-", "|", "|") comp-formats easy task feature

#10429 opened Apr 22, 2020 by l1t1

2

Add netloc function for url easy task feature help wanted

#10357 opened Apr 19, 2020 by imfht

7

Add setting "aggregate_functions_null_for_empty" easy task feature sql-compatibility

#10273 opened Apr 15, 2020 by alexey-milovidov

1

"ephemeral" or "dematerialized" columns altinity easy task feature

#9436 opened Feb 28, 2020 by alexey-milovidov

Collapse NONE codecs. comp-codecs easy task feature

#10536 opened Apr 27, 2020 by alexey-milovidov

Introduce a setting that forbids to create tables in old/legacy format by default easy task feature

#10406 opened Apr 21, 2020 by den-crane

4

[FEATURE REQUEST] implements rfc1866 part 8.2.1 compatible parsing for decodeURLComponent comp-functions easy task feature st-accepted

#10298 opened Apr 16, 2020 by Slach

min_bytes_to_use_direct_io_for_fetches easy task feature

#9140 opened Feb 15, 2020 by alexey-milovidov

Allow configurable NULL representation for TSV easy task feature st-accepted

#9375 opened Feb 26, 2020 by jason-godden

1

Optimize data on INSERT easy task feature st-community-taken

#10683 opened May 5, 2020 by alexey-milovidov

1

system.asynchronous_metric_log table easy task feature

#9429 opened Feb 28, 2020 by alexey-milovidov

toDateTimeOrNull does not accept second argument with timezone comp-datetime easy task unfinished code

#9584 opened Mar 10, 2020 by alexey-milovidov

4

Implement function `hex` from AggregateFunction states. easy task feature

#9390 opened Feb 26, 2020 by alexey-milovidov

Time with microseconds in system.query_log easy task feature

#9800 opened Mar 21, 2020 by alexey-milovidov

Codecs: allow to reference default compression easy task feature

#9074 opened Feb 11, 2020 by filimonov

2

When I accidentially type "clickhouse-client xyzgarbage", it does not argue. easy task usability

#9797 opened Mar 21, 2020 by alexey-milovidov

Add some \letter commands in clickhouse-client like in PostgreSQL. comp-cli easy task feature usability

#9339 opened Feb 24, 2020 by alexey-milovidov

2

Default cluster for distributed DDL easy task feature help wanted

#8676 opened Jan 15, 2020 by KochetovNicolai

3

Support Mutations in storage Memory. comp-mutations easy task feature prio-minor

#9117 opened Feb 14, 2020 by qoega

3

doubled slash in paths in error log easy task prio-minor st-community-taken

#8301 opened Dec 19, 2019 by filimonov

8

Add `logTrace` and `tid` function. easy task feature

#9434 opened Feb 28, 2020 by alexey-milovidov

Generic compression methods for files: add `xz`. easy task feature

#8828 opened Jan 25, 2020 by alexey-milovidov

1

SYSTEM SYNC FILE CACHE easy task feature

#8921 opened Jan 31, 2020 by alexey-milovidov

HTTP dictionary source doesn't support HTTP compression easy task feature

#8912 opened Jan 30, 2020 by Nyoroon

Default arguments for Replicated engine easy task feature

#8675 opened Jan 15, 2020 by KochetovNicolai

ClickHouse can display wrong symbol and file names in logs if the debuginfo binary was replaced to a different version. easy task help wanted prio-minor

#7514 opened Oct 28, 2019 by filimonov

3

Changes of Enum in partition key don't work easy task feature unfinished code

#7513 opened Oct 28, 2019 by filimonov

3

ClickHouse does not like empty columns in a part bug easy task prio-minor

#7941 opened Nov 27, 2019 by excitoon

2

Allow to change maximum number of threads in global ThreadPool in config. easy task feature

#7099 opened Sep 25, 2019 by alexey-milovidov

Add support for IPv4 / IPv6 to ip_trie dict comp-dictionary easy task feature

#6804 opened Sep 3, 2019 by champtar

1

system.data_skipping_indices table for data skipping indices comp-skipidx easy task feature help wanted

#7659 opened Nov 6, 2019 by ifoo

Force ignore the free space check in OPTIMIZE TABLE easy task feature st-accepted

#7047 opened Sep 22, 2019 by vmarkovtsev

2

SYSTEM DROP REPLICA easy task feature help wanted

#7080 opened Sep 24, 2019 by filimonov

7

Negation for sequenceMatch/sequenceCount easy task feature st-accepted

#7094 opened Sep 25, 2019 by killwort

2

Detect UTF-16 BOM in CSV/TSV/JSONEachRow input and process it accordingly. easy task feature prio-minor

#6476 opened Aug 13, 2019 by alexey-milovidov

clickhouse-local interactive mode. comp-local easy task feature st-community-taken

#7203 opened Oct 5, 2019 by alexey-milovidov

2

Relax "Too many parts" threshold. easy task feature

#6551 opened Aug 19, 2019 by alexey-milovidov

Add support for disabling checksumming of blocks over the TCP protocol (distributed / remote tables) easy task feature

#7288 opened Oct 12, 2019 by richardartoul

4

SYSTEM RELOAD DICTIONARY ... ON CLUSTER ... comp-dddl easy task feature

#6418 opened Aug 9, 2019 by filimonov

2

Please add array version for cutURLParameter to cut multiple parameters at a time easy task feature st-accepted

#6827 opened Sep 5, 2019 by cameronbraid

1

Allow to provide exact value instead of "rows_before_limit_at_least" easy task feature prio-minor

#6613 opened Aug 22, 2019 by alexey-milovidov

1

Ability to remove CODEC from a column (DDL). easy task feature

#6227 opened Jul 30, 2019 by den-crane

3

Parallel ALTER MODIFY of data parts for ReplicatedMergeTree. easy task feature

#6555 opened Aug 19, 2019 by alexey-milovidov

Add what database a query occurred on in the query_log easy task feature

#6367 opened Aug 6, 2019 by alexs131

2

Support memory only mode for StorageJoin easy task feature

#6318 opened Aug 4, 2019 by zombiemonkey

2

Merges counter metric easy task feature

#6436 opened Aug 11, 2019 by Tri0L

1

Add integration test with connecting to Oracle through ODBC. comp-foreign-db comp-odbc easy task feature

#6558 opened Aug 19, 2019 by alexey-milovidov

1

verbose mode partition commands with wrong partition identifier bug easy task help wanted operations usability

#6743 opened Aug 30, 2019 by filimonov

1

When doing trivial INSERT SELECT without WHERE, GROUP BY, etc, set max_threads to 1 automatically. easy task performance

#5907 opened Jul 6, 2019 by alexey-milovidov

4

Hive odbc driver bug comp-odbc easy task

#6412 opened Aug 9, 2019 by frankegoesdown

3

INSERT AND SELECT query (RFC) easy task feature prio-minor

#5912 opened Jul 6, 2019 by alexey-milovidov

1

Express SQL projection by specifying only columns to exclude easy task feature st-discussion

#5109 opened Apr 25, 2019 by healiseu

3

"Information" vs "notice" logging level easy task feature help wanted prio-minor

#5293 opened May 15, 2019 by heyciao

2

clickhouse-benchmark should be able to count errors / exceptions easy task feature

#5056 opened Apr 19, 2019 by filimonov

4

Add new modificators for formatDateTime() - %g and %G easy task feature

#4659 opened Mar 12, 2019 by karakum

1

Improve performance of clickhouse-local and StorageFile with mmap. easy task feature

#5149 opened Apr 29, 2019 by alexey-milovidov

clickhouse-client timings output file instead of stderr comp-cli easy task feature

#4872 opened Apr 1, 2019 by jangorecki

4

Add parseDateTimeBestEffortUS function. easy task feature

#5157 opened Apr 30, 2019 by alexey-milovidov

Feature request: Add support for MongoDB clusters as external dictionaries comp-dictionary comp-foreign-db easy task enhancement help wanted

#4190 opened Jan 30, 2019 by uncletimmy3

11

Increase precision of query_start_time in query_thread_log table easy task feature

#4821 opened Mar 27, 2019 by nvartolomei

2

19.1.10 cannot drop database with engine=Dictionary if it is not empty bug comp-dictionary easy task st-accepted v19.1

#4586 opened Mar 5, 2019 by SaltTan

5

clickhouse-client: Bad error message when current directory does not exist. comp-cli easy task enhancement

#4457 opened Feb 20, 2019 by alexey-milovidov

1

Enums in MySQL engine comp-foreign-db easy task

#3985 opened Jan 4, 2019 by filimonov

3

Client --query run mode write number of rows inserted to stdout on exit comp-cli easy task enhancement feature

#3682 opened Nov 28, 2018 by reflection

1

Report number of skipped messages in a more verbose way easy task enhancement

#4149 opened Jan 25, 2019 by abyss7

1

Wrong / meaningless syntax [create view ... to ...] allowed bug easy task

#4331 opened Feb 11, 2019 by den-crane

1

startPos optional arg in position/locate functions enhancement good first issue sql-compatibility

#3776 opened Dec 7, 2018 by blinkov

4

compressed output formats comp-formats easy task feature

#3473 opened Oct 26, 2018 by filimonov

1

Add replace/remove examples for configuration documentation comp-documentation

#8394 opened Dec 25, 2019 by qoega

1

Separator the resource for Insert and Query，Keep the insert ability. easy task enhancement feature good first issue help wanted

#3575 opened Nov 13, 2018 by yunchat

3

CHECK TABLE documentation is inaccurate comp-documentation

#8338 opened Dec 22, 2019 by ishirav

Altering column with changing type on distributed table doesn't work as expected easy task

#2838 opened Aug 10, 2018 by renatko

2

Translate website 'Overview of ClickHouse Architecture' to Russian comp-documentation

#8074 opened Dec 7, 2019 by mgaidamak

3

MySQL engine: mention as well "insert" queries comp-documentation comp-foreign-db

#7745 opened Nov 13, 2019 by heyciao

1

Steps in "Testing Hardware" look to be out of date comp-documentation

#9951 opened Mar 30, 2020 by pbadenski

2

After 'no space' error and cleaned up disk, 'create table' stuck easy task st-need-info

#2628 opened Jul 11, 2018 by innerr

3

Type name case sensitivity comp-documentation

#8962 opened Feb 3, 2020 by killwort

6

Subqueries in MV are executed at query parse time bug comp-matview comp-optimizers performance

#9587 opened Mar 10, 2020 by filimonov

1

Add origin description to system.part_log feature

#10097 opened Apr 7, 2020 by akuzm

1

generate-documentation tool build

#6492 opened Aug 14, 2019 by alexey-milovidov

Add used databases and tables to query_log feature usability

#9030 opened Feb 6, 2020 by qoega

JOIN keys should be converted to the least common type comp-joins unexpected behaviour

#10197 opened Apr 12, 2020 by alexey-milovidov

1

alter modify column type from String to IPv4 wont work bug comp-mutations

#9119 opened Feb 14, 2020 by alekon

Add INFORMATION_SCHEMA database feature sql-compatibility

#9770 opened Mar 20, 2020 by filimonov

uniqExact using sip128 code may have collision question

#9506 opened Mar 4, 2020 by templarzq

15

Clickhouse doesn't respect cgroup limits easy task

#2261 opened Apr 22, 2018 by tobad357

6

Keep edits in history while navigating with up/down keys in client. comp-cli usability

#9474 opened Mar 3, 2020 by alexey-milovidov

1

query_log doesn't explain the reason of insert query slowness performance

#9958 opened Mar 31, 2020 by jackpgao

Decimal rounding uses different rounding mode comp-decimal comp-documentation

#7044 opened Sep 22, 2019 by SergeyMirvoda

2

Documentation missing for entropy() function comp-documentation

#7165 opened Oct 1, 2019 by ifoo

2

WITH clause documentation comp-documentation

#5363 opened May 21, 2019 by filimonov

3

empty tuple() in ORDER BY in mergeTree table definition comp-documentation

#9521 opened Mar 5, 2020 by jangorecki

1

CREATE MV ON CLUSTER trying to find source tables in default database comp-dddl feature

#8445 opened Dec 28, 2019 by simPod

2

Send Query Parameters through POST body feature st-accepted

#8842 opened Jan 26, 2020 by simPod

6

LowCardinality is not documented comp-documentation comp-lowcardinality question

#5591 opened Jun 12, 2019 by simPod

5

Missing Documentation of `kafka_max_block_size` comp-documentation

#5553 opened Jun 7, 2019 by spyros87

1

Inconsistent docs with absolute path in `format_schema` comp-documentation

#4745 opened Mar 20, 2019 by simPod

1

Lowering the default for maximum of parts to be merged at once, or make it configurable easy task help wanted

#1820 opened Jan 24, 2018 by dqminh

3

CLEAR COLUMN query should be disallowed for key columns other than the last. bug st-accepted

#6913 opened Sep 11, 2019 by CurtizJ

5

Usability improvements for secondary indices. comp-skipidx usability

#7081 opened Sep 24, 2019 by alexey-milovidov

2

Add "max_simultaneous_queries_for_all_users" settings. feature prio-minor

#6636 opened Aug 23, 2019 by alexey-milovidov

4

readonly settings constraint from default profile can't be changed in other profiles bug comp-rbac

#7275 opened Oct 11, 2019 by PhantomPhreak

2

PR: apply new order by expression to new parts feature

#7052 opened Sep 23, 2019 by kaijianding

1

WHERE EXISTS ( ... subquery ...) not supported and error message is confusing feature prio-minor sql-compatibility

#6852 opened Sep 6, 2019 by filimonov

1

cutIPv6 documentation misleading comp-documentation

#4517 opened Feb 27, 2019 by ayng

2

Forbid materialized view creation on engines that does not support inserts/MV comp-matview feature

#5207 opened May 6, 2019 by filimonov

XOR function returns 255 instead of 1 bug comp-documentation

#7404 opened Oct 21, 2019 by ishirav

1

how to achieve path analysis using click house, does anyone has relative experiences to share? question

#6719 opened Aug 29, 2019 by Chr1sxu

3

ALTER of key column column_name must be metadata-only question

#5604 opened Jun 13, 2019 by simPod

7

Unclear which timeout is exceeded feature st-accepted usability

#6567 opened Aug 20, 2019 by MrBuddyCasino

clickhouse mysql interface bug bug comp-foreign-db

#6047 opened Jul 18, 2019 by foolfish3

No parser error on wrong CREATE TABLE ... AS table bug usability

#6154 opened Jul 25, 2019 by 4ertus2

2

Missing typos suggestion for column names. feature usability

#6768 opened Sep 1, 2019 by alexey-milovidov

1

Improve exception description `DB::Exception: DDL background thread is not initialized.` bug comp-dddl v19.4

#5075 opened Apr 22, 2019 by Felixoid

4

The bar() function doesn't add up spaces to align to the width easy task

#828 opened May 26, 2017 by hatarist

3

Hash functions should be checked at table creation, not at sampling time easy task enhancement

#822 opened May 24, 2017 by 3manuek

4

Log message for 'Connection reset by peer' could be improved usability

#5183 opened May 3, 2019 by citrin

6

DELTA CODEC don't support Nullable ? feature

#4609 opened Mar 6, 2019 by TH-HA

Shadow variables in higher order functions/improve error message for naming collisions enhancement usability

#5046 opened Apr 18, 2019 by buyology

2

ALTER UPDATE calculate the column before applying WHERE filtering bug comp-mutations

#5214 opened May 7, 2019 by filimonov

1

alter update behaviour depends on where (can fail with DB::Exception) comp-mutations sql-compatibility usability

#4165 opened Jan 28, 2019 by den-crane

5

FR: Table locks feature

#4802 opened Mar 26, 2019 by filimonov

Confusing (wrong) error message. comp-joins usability

#4222 opened Feb 1, 2019 by den-crane

2

Documentation: incoming data (web analytics & sessioning) tutorial help wanted

#2728 opened Jul 26, 2018 by xmariachi

5

proposal for a function to reduce boilerplate with select nested feature

#3765 opened Dec 6, 2018 by den-crane

1

При использовании функции ODBC для Postgres в столбец типа Date приходит NULL bug comp-odbc st-need-info

#3700 opened Nov 29, 2018 by yutrostin

3

Use of datetime fuction required when using datetime function in primary key for SummingMergeTree bug prio-minor st-accepted

#3261 opened Oct 1, 2018 by simPod

3

SYSTEM commands lack documentation comp-documentation

#2511 opened Jun 14, 2018 by tobia

Document recommended procedure to take down nodes for maintenance comp-documentation

#2368 opened May 15, 2018 by dqminh

2

GraphiteMergeTree documentation comp-documentation

#1960 opened Feb 24, 2018 by ei-grad

1

MATERIALIZED columns are treated as regular columns when inserting data with MATERIALIZED VIEW bug comp-matview

#3484 opened Oct 29, 2018 by wawaka

2

MV definition is not updated after ATTACH altinity comp-matview usability

#2839 opened Aug 10, 2018 by alex-zaitsev

1

Docs: `SHOW PROCESSLIST` not actually identical to `SELECT * FROM system.processes` comp-documentation

#1825 opened Jan 25, 2018 by cincodenada

2

Update documentation on Docker hub comp-documentation docker

#1421 opened Oct 29, 2017 by ZarubinArtem

2

(Merger): Unexpected number of parts removed when adding...

#2927 opened Aug 23, 2018 by rugabarbo

1

Improving sending metrics from clickhouse to graphite - set hostname

#2419 opened May 25, 2018 by unix196

1

CREATE MATERIALIZED VIEW ... TO AS SELECT: bad field disambiguation duplicate

#2625 opened Jul 10, 2018 by xmariachi

1

Identical subqueries aren't concatenated and executed many times.

#2301 opened Apr 28, 2018 by StarWix

1

feature request: EXPLAIN output feature

#1118 opened Aug 17, 2017 by bubaflub

17

Execution of ALTER queries on materialized views comp-matview feature

#1226 opened Sep 11, 2017 by bgaifullin

2

quantileTDigest is incorrect?

#1158 opened Aug 28, 2017 by vadimtk

5

Distinct and order by with different columns comp-documentation

#54 opened Jul 13, 2016 by minouminou

2